Privacy Policy.

Last updated: June 10, 2026

Overview

LumberMathz ("we," "our," or "us") operates lumbermathz.com. This Privacy Policy explains what information we collect, how we use it, and your rights regarding that information. We are committed to handling your data responsibly.

Information we collect

Information you provide

LumberMathz calculators run entirely in your browser. The dimensions and prices you enter are never transmitted to our servers. We do not collect, store, or sell your calculator inputs.

Usage data (analytics)

We may use privacy-respecting analytics (such as Google Analytics or a self-hosted alternative) to understand which pages are visited and how users interact with the calculators. This data is aggregated and anonymous. It may include your approximate geographic region, browser type, device type, and referring URL.

Cookies

We may use first-party cookies to remember preferences (such as your last-used calculator settings). Analytics and advertising services may set third-party cookies. You can disable cookies in your browser settings; the calculators will still function without them.

Advertising (Google AdSense)

We may display advertisements served by Google AdSense. Google may use cookies to serve ads based on your prior visits to this site and other sites on the internet. You can opt out of personalized advertising at google.com/settings/ads . For more information on how Google uses data from partners, see policies.google.com/technologies/partner-sites .

How we use information

  • To understand which calculators are most useful and improve them over time.
  • To diagnose technical issues and fix calculation errors.
  • To display relevant advertisements that support free access to the tools.

Information sharing

We do not sell your personal information. We do not share your data with third parties except as necessary to operate the site (e.g., analytics providers, hosting providers) or as required by law.

Data retention

Because the calculators run in your browser and we do not collect calculator inputs, there is no personal data related to your calculations to retain or delete. Aggregated analytics data is retained for up to 26 months.

Your rights

Depending on your location, you may have rights to access, correct, delete, or object to the processing of your personal data. To exercise these rights, contact us at hello@lumbermathz.com .

Children's privacy

LumberMathz is not directed at children under 13. We do not knowingly collect personal information from children under 13. If you believe we have inadvertently collected such information, please contact us and we will delete it promptly.

Changes to this policy

We may update this Privacy Policy from time to time. We will post the updated date at the top of this page. Your continued use of the site after changes are posted constitutes your acceptance of the revised policy.

Contact

Questions about this Privacy Policy? hello@lumbermathz.com